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arXiv · hep-ph/0305090

Explaining Why the u and d Quark Masses are Similar

S. M. Barr·I. Dorsner
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Abstract

An approach is suggested for modeling quark and lepton masses and mixing in the context of grand unified theories that explains the curious fact that m_u ~ m_d even though m_t >> m_b. The structure of the quark mass matrices is such as to allow a non-Peccei-Quinn solution of the Strong CP Problem.

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S. M. Barr, I. Dorsner. 2003-05-08. Explaining Why the u and d Quark Masses are Similar. https://doi.org/10.1016/s0370-2693(03)00772-x

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